Safe to driveUntil the next service
J1939 code SPN 1042. Below — how the fault is worded at the factory by Knorr-Bremse EBS, MAN and Renault Trucks, and what the second half of the code (FMI) means in the standard.
Knorr-Bremse EBSMANRenault Trucks
| FMI 10 | ISO 11992 data channel (CAN trailer), data channel off. Open |
| FMI 10 | ISO 11992 data channel (CAN trailer) - Open |
| FMI 7 | Fault at the 7-pin trailer socket (not stored). Repair: Check the socket and its wiring. |
| SPN 1042 FMI 71042/7 · 1042.7 | mechanical system not responding |
| SPN 1042 FMI 101042/10 · 1042.10 | abnormal rate of change |
Safe to drive. Below — how much time you have and what happens if you keep going.
A standalone fault with no immediate consequences for driving.
Show the codes at the next service. If a second code from the same system appears, stop putting it off.
Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.